The dorsal-most vegetal cells of the amphibian embryo that is capable of inducing the organizer is called as Nieuwkoop centre and is marked by the presence of
Anonymous Poll
10%
Chordin
69%
β-catenin
14%
Goosecoid
7%
Nanos
Which kind of cleavage is shown in mammals?
Anonymous Poll
51%
Holoblastic rotational
19%
Meroblastic rotational
23%
Holobastic radial
7%
Meroblastic radial
During embryo germination in a grass family an absorptive organ that forms interface between the embryo and the starchy endosperm tissue is called
Anonymous Poll
15%
Coleorhiza
31%
Coleoptile
46%
Scutellum
8%
Mesocotyl
For which one of the plant hormone biosynthetic pathways, 1-aminocyclo- propane- l -carboxylic acid is an intermediate?
Anonymous Poll
24%
Abscisic acid
27%
Brassinosteroid
33%
Ethylene
16%
Gibberellic acid
Filtration slits are formed by
Anonymous Poll
47%
podocytes
36%
endothelial cells of capillary
14%
mesangial cells
4%
Lacis cells
👍1
Which one of the following vitamins is NOT absorbed in the small intestine by Na+ - co- transporters?
Anonymous Poll
17%
Thiamine
26%
Riboflavin
35%
Folic acid
21%
Ascorbic acid.
Which one of the following is NOT formed after post-translational processing of pre- proglucagon?
Anonymous Poll
8%
Glicentin
36%
β-lipotropin
37%
Major proglucagon fragment
19%
Oxyntomodulin
Which one of the following is the most powerful buffer system of blood?
Anonymous Poll
61%
Bicarbonate
12%
Phosphate
6%
Proteins
21%
Hemoglobin
In Drosophila melanogaster males, homologous chromosomes pair and segregate during meiosis but crossing over does not occur. At which stage of meiosis does segregation of 2 alleles of a gene take place in these individuals?
Anonymous Poll
16%
Zygotene
25%
Diakinesis
37%
Anaphase I
22%
Anaphase II
👍4🎉1
A recessive inherited disease is expressed only in individuals of blood group O and not expressed in blood groups A, B or AB. Alleles controlling the disease and blood group are independently inherited. A normal woman with blood group A and her normal husband with blood group B already had one child with the disease. The woman is pregnant for second time. What is the probability that the second child will also have the disease?
A lac- culture of E. coli was mutagenised. On what media would one spread the mutagenised cells to select for lac+ cells?
Anonymous Poll
20%
Minimal media+ lactose.
20%
Rich media + lactose.
48%
Minimal media + glycerol+ IPTG + X-Gal
11%
Rich media+ IPTG + X-Gal
As per the cladistic taxonomy, Archosaurs are a group of diapsid amniotes which include extinct dinosaurs. The living representatives of the group consist of
Anonymous Poll
12%
Anurans and Aves
46%
Aves and Crocodilia
24%
Aves and Agnatha
17%
Osteichthyes and Squamata